122144121331 has 4 divisors (see below), whose sum is σ = 122145442000. Its totient is φ = 122142800664.

The previous prime is 122144121311. The next prime is 122144121343. The reversal of 122144121331 is 133121441221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133121441221 = 17 ⋅7830673013.

It is a cyclic number.

It is not a de Polignac number, because 122144121331 - 2⁵ = 122144121299 is a prime.

It is a super-2 number, since 2×122144121331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122144121296 and 122144121305.

It is not an unprimeable number, because it can be changed into a prime (122144121301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510231 + ... + 710368.

It is an arithmetic number, because the mean of its divisors is an integer number (30536360500).

Almost surely, 2^122144121331 is an apocalyptic number.

122144121331 is a deficient number, since it is larger than the sum of its proper divisors (1320669).

122144121331 is a wasteful number, since it uses less digits than its factorization.

122144121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320668.

The product of its digits is 1152, while the sum is 25.

Adding to 122144121331 its reverse (133121441221), we get a palindrome (255265562552).

The spelling of 122144121331 in words is "one hundred twenty-two billion, one hundred forty-four million, one hundred twenty-one thousand, three hundred thirty-one".